396 free science experiment photos from Freerange

Bottle of acetic acid and the molecular structure.

A reagent bottle containing acetic acid.

Microscope and slide.

Apollo astronauts in the lunar rover

Chemistry of thin layer chromatography with plate, solvent and samples.

A GC column, vial, and syringe.

Copper solution burning on a wooden splint in a bunsen burner flame.

DNA - Genetics - Genes

Professional, technician. Scientist with microscope

Bunsen Burner in a chemistry laboratory.

Diversity group of students in protective eyeglasses in science class doing chemical experiment in laboratory. Girl mixing chemistry in test tube. learning and education concept

An isolated sintered glass crucible.

Microorganisms growing.

Analog pH meter with electrode, pH 7 and 4 buffers.

A close-up image showing a simple LED circuit with red and green LEDs on a white breadboard, with wires and a resistor connected

Four reagent bottles containing hydrochloric acid, ammonium hydroxide, and acetic acid.

Test tubes in a glass beaker.

A bottle of methanol with its chemical structure.

Microbiology technique

Spread plate techniques.

Beaker containing a solution.

Gram negative rods with spores. Viewed under the microscope at 1000x.

Hot plate with beaker and test tubes.

Science image for research and education.

Bacteria growing on a petri plate.

Food safety pathogen E. coli growing on an agar plate.

Different colored inorganic chemical salts used in a chemistry lab.

Different materials used to determine density. Including iron, copper, lead, cork, aluminum and plastic.

Combustion reaction using sucrose to produce caramel and steam.

Bottles containing acid and base.

Solid phase microextraction holder used in gas chromatography.

Science image for research and education.

Medical Doctors Performing DNA Analysis

Group of students watching African American teacher showing science equipment experiment in the classroom at school. education and learning concept

Equipment in a microbiology lab.

A man wearing a white lab coat standing next to a little girl in a white dress. The man appears focused while the girl looks curious.

A bright light is illuminating a variety of food items placed on a table. The food appears to be freshly prepared and includes fruits, vegetables, and bread.

A petri plate containing Escherichia coli.

Chemical vials

Flask, pipet and hand.

Bromine in a reagent bottle.

Different shaped colonies of bacteria, yeast and mold growing on agar plates from enviromental samples.

The colony morphology of Geobacillus stearothermophilus. A thermophile that causes food spoilage.

Bacterial plate showing wells and bacteria.

E. coli growing on EMB agar.

Biological waste.

Microbes on the Crosshairs - Fighting Infection by Viruses and Bacteria

Measured mass of iodine.

Combustion reaction using sucrose to produce caramel and steam.

Reading the value from a hydrometer. Used for determining the specific gravity of liquids including beer.